Specifications:

Twin Socket Car Adapter with Two USB Outlet
Input: DC12-24V                                                  
Output: Two12/24V sockets
5V/2.0A,3.1A or4.8A (total) with 2 USB ports
smart IC optional
LED power indicator
Fused protection
Maximum output current 8A
with CE & ROHS
Packing:

double blister
carton size:66.5x26.5x34.5cm/6pcs/inner box/36pcs/ctn